Event between (136204) 03WL7 and star GA1020:03440539 with event index number of 2039292
Geocentric closest approach at 2025/03/07 11:07:38 UTC
J2000 position of star is 10:50:25.2 +12:52:17
Equinox of date position of star is 10:51:42.2 +12:44:31
Stellar brightness G=13.1,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 72 degrees from the moon.
Moon is 59% illuminated.
Apparent brightness V=21.3
[RECON map]
Object is 18.3 AU from the Sun
and 17.3 AU from the Earth.
Apparent velocity is 22.9
km/sec on the sky relative to the star, or,
6.6 arcsec/hr.
The 1-sigma error in the time of the event is 44 seconds.
The 1-sigma cross-track error in the shadow position is
826 km.
The sky-plane scale is
12553.2 km/arcsec.
The object has an absolute magnitude Hv=8.7
Diameter=110.2 km assuming a 5% albedo -- 4.8 sec chord
Diameter=45.0 km assuming a 30% albedo -- 1.9 sec chord
Dynamical classification is CENTAURR
Star training set for 136204, (2025/03/07 11:08UT) Object RA Dec mag sep mel Regulus 10:09:42.7 +11:50:35 1.3 10.31 63 68Del Leo 11:15:26.6 +20:23:08 2.6 9.52 74 52 Leo 10:47:45.2 +14:03:40 5.5 1.64 70 PPM 127756 10:52:05.2 +12:08:00 8.5 0.61 72 PPM 127747 10:51:28.7 +12:40:32 9.0 0.09 72 136204 10:51:44.9 +12:44:15 13.1 72 Positions are for equinox of date
This table contains the target star visibility for the RECON
network. The observing range has been set to a maximum of
5.0 sigma about the mid-time.
The median site spacing is 14.1 km
RECON observability=1.0 and success probability=0.0%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 11:06:14 | -23.3 | Dark | Down | 26.3 | 256.7 | Low | 11:02:03 - 11:10:26 | 8502 |
| Kamloops | 11:06:29 | -31.8 | Dark | Up | 35.2 | 244.4 | Up | 11:02:17 - 11:10:40 | 8078 |
| Kelowna | 11:06:25 | -31.8 | Dark | Up | 35.1 | 245.8 | Up | 11:02:13 - 11:10:36 | 8055 |
| Peachland | 11:06:24 | -32.0 | Dark | Up | 35.3 | 245.6 | Up | 11:02:13 - 11:10:36 | 8040 |
| Summerland | 11:06:23 | -32.0 | Dark | Up | 35.3 | 245.7 | Up | 11:02:12 - 11:10:35 | 8034 |
| Penticton | 11:06:23 | -32.0 | Dark | Up | 35.3 | 245.9 | Up | 11:02:12 - 11:10:35 | 8033 |
| Oliver | 11:06:22 | -32.2 | Dark | Up | 35.4 | 246.1 | Up | 11:02:10 - 11:10:33 | 8013 |
| Anarchist Mountain Observatory | 11:06:21 | -32.2 | Dark | Up | 35.4 | 246.4 | Up | 11:02:10 - 11:10:33 | 8008 |
| Okanogan | 11:06:19 | -32.7 | Dark | Up | 35.8 | 246.6 | Up | 11:02:07 - 11:10:30 | 7963 |
| Brewster | 11:06:18 | -33.0 | Dark | Up | 36.0 | 246.6 | Up | 11:02:07 - 11:10:30 | 7942 |
| Manson/Chelan | 11:06:18 | -33.3 | Dark | Up | 36.3 | 246.4 | Up | 11:02:07 - 11:10:30 | 7919 |
| Wenatchee | 11:06:16 | -33.7 | Dark | Up | 36.6 | 246.5 | Up | 11:02:04 - 11:10:27 | 7885 |
| Victoria | 11:06:27 | -34.6 | Dark | Up | 38.0 | 242.9 | Up | 11:02:15 - 11:10:38 | 7869 |
| Dunrhomin | 11:05:25 | -27.1 | Dark | Down | 28.0 | 263.1 | Low | 11:01:13 - 11:09:36 | 7856 |
| Ellensburg | 11:06:16 | -34.0 | Dark | Up | 36.9 | 246.6 | Up | 11:02:04 - 11:10:27 | 7853 |
| Nikitin | 11:05:24 | -27.1 | Dark | Down | 28.1 | 263.2 | Low | 11:01:12 - 11:09:35 | 7843 |
| PNWRO | 11:06:09 | -33.6 | Dark | Down | 36.2 | 248.8 | Up | 11:01:58 - 11:10:21 | 7837 |
| CU-SBO | 11:05:24 | -27.2 | Dark | Down | 28.1 | 263.2 | Low | 11:01:12 - 11:09:35 | 7837 |
| Yakima | 11:06:14 | -34.3 | Dark | Up | 37.1 | 246.9 | Up | 11:02:03 - 11:10:26 | 7827 |
| Toppenish/White Swan | 11:06:12 | -34.3 | Dark | Down | 37.1 | 247.2 | Up | 11:02:01 - 11:10:24 | 7818 |
| The Dalles | 11:06:12 | -35.2 | Dark | Down | 37.9 | 247.0 | Up | 11:02:00 - 11:10:23 | 7746 |
| Maupin | 11:06:10 | -35.4 | Dark | Down | 38.0 | 247.4 | Up | 11:01:59 - 11:10:22 | 7722 |
| Sisters | 11:06:07 | -36.1 | Dark | Down | 38.6 | 247.6 | Up | 11:01:56 - 11:10:19 | 7650 |
| Bend | 11:06:06 | -36.1 | Dark | Down | 38.6 | 248.0 | Up | 11:01:55 - 11:10:18 | 7642 |
| Oregon Observatory | 11:06:06 | -36.3 | Dark | Down | 38.7 | 248.0 | Up | 11:01:55 - 11:10:18 | 7626 |
| Chiloquin | 11:06:02 | -37.3 | Dark | Down | 39.5 | 248.6 | Up | 11:01:51 - 11:10:14 | 7524 |
| Cedarville | 11:05:55 | -36.8 | Dark | Down | 38.7 | 250.8 | Up | 11:01:43 - 11:10:06 | 7503 |
| Klamath Falls | 11:06:00 | -37.4 | Dark | Down | 39.6 | 248.9 | Up | 11:01:49 - 11:10:12 | 7503 |
| Fall River/Burney | 11:05:56 | -37.8 | Dark | Down | 39.7 | 250.1 | Up | 11:01:44 - 11:10:07 | 7431 |
| Gimple | 11:05:51 | -38.0 | Dark | Down | 39.7 | 251.3 | Up | 11:01:39 - 11:10:02 | 7383 |
| Greenville | 11:05:52 | -38.0 | Dark | Down | 39.7 | 251.2 | Up | 11:01:40 - 11:10:03 | 7380 |
| Reno | 11:05:47 | -37.6 | Dark | Down | 39.1 | 252.6 | Up | 11:01:36 - 11:09:59 | 7373 |
| Portola | 11:05:49 | -37.9 | Dark | Down | 39.5 | 251.9 | Up | 11:01:38 - 11:10:01 | 7372 |
| Quincy | 11:05:51 | -38.1 | Dark | Down | 39.8 | 251.4 | Up | 11:01:39 - 11:10:02 | 7366 |
| Yerington | 11:05:44 | -37.4 | Dark | Down | 38.8 | 253.6 | Up | 11:01:33 - 11:09:56 | 7353 |
| Carson City | 11:05:45 | -37.7 | Dark | Down | 39.2 | 252.9 | Up | 11:01:34 - 11:09:57 | 7347 |
| Hawthorne | 11:05:41 | -37.3 | Dark | Down | 38.5 | 254.3 | Up | 11:01:29 - 11:09:52 | 7336 |
| Gardnerville | 11:05:45 | -37.8 | Dark | Down | 39.2 | 253.1 | Up | 11:01:33 - 11:09:56 | 7331 |
| Lee Vining | 11:05:41 | -37.9 | Dark | Down | 39.0 | 254.4 | Up | 11:01:29 - 11:09:52 | 7279 |
| Beatty | 11:05:32 | -36.7 | Dark | Down | 37.5 | 257.0 | Up | 11:01:20 - 11:09:43 | 7275 |
| Bishop | 11:05:37 | -37.7 | Dark | Down | 38.7 | 255.4 | Up | 11:01:25 - 11:09:48 | 7257 |
| Patrick | 11:05:21 | -35.2 | Dark | Down | 35.6 | 260.1 | Up | 11:01:09 - 11:09:32 | 7256 |
| Laughlin/Bullhead City | 11:05:20 | -35.8 | Dark | Down | 36.2 | 259.8 | Up | 11:01:09 - 11:09:32 | 7214 |
| George/Scottsdale | 11:05:11 | -34.2 | Dark | Down | 34.2 | 262.5 | Up | 11:01:00 - 11:09:23 | 7192 |
| Lake Havasu City | 11:05:18 | -35.9 | Dark | Down | 36.1 | 260.4 | Up | 11:01:07 - 11:09:30 | 7171 |
| Idyllwild | 11:05:21 | -38.0 | Dark | Down | 38.2 | 259.4 | Up | 11:01:09 - 11:09:32 | 7035 |
| Calipatria | 11:05:15 | -37.3 | Dark | Down | 37.3 | 260.6 | Up | 11:01:04 - 11:09:27 | 7026 |
| Yuma | 11:05:12 | -36.8 | Dark | Down | 36.6 | 261.5 | Up | 11:01:00 - 11:09:23 | 7021 |
| Wildwood | 11:05:26 | -39.3 | Dark | Down | 39.6 | 257.8 | Up | 11:01:15 - 11:09:38 | 7000 |
Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.
Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.
Star training set for 136204, (2025/03/07 11:08UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 10.31 63 68Del Leo 11:14:06.7 +20:31:22 2.6 9.52 74 52 Leo 10:46:25.1 +14:11:39 5.5 1.64 70 PPM 127756 10:50:45.6 +12:16:02 8.5 0.61 72 PPM 127747 10:50:09.0 +12:48:34 9.0 0.09 72 136204 10:50:25.2 +12:52:17 13.1 72 Positions are for J2000
Event circumstances last updated at 2024/04/22 03:57:49 UT
Marc W. Buie, Southwest Research Institute